ios - xcode预览无法构建到项目中

Question

Canvas 预览出现这样的错误:

UnknownPreviewProviderError: Unknown preview provider "AboutView_Previews" 买就返.app does not contain a preview provider named "AboutView_Previews". Check your build settings to ensure the preview provider is compiled into your product. Mangled name: 3买就返18AboutView_PreviewsV

Error Domain=com.apple.dt.UITestingAgent Code=-1 "Preview provider "3买就返18AboutView_PreviewsV" does not exist" UserInfo={NSLocalizedDescription=Preview provider "3买就返18AboutView_PreviewsV" does not exist}

我已检查“build设置”->“构建选项”->“启用预览”是否为"is"

import SwiftUI
struct ContentView: View {

    var body: some View {
        TabView {
            HomeView()
                .tabItem {
                    Image("tabbarHome")
                    Text("首页")
            }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

Answer 1

只是 更改应用名称(“ repo ”) 它会解决你的问题